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Microbial Growth ch 6/Control of Microbial Growth ch 7
Wk 4 Quiz 1
10
Microbiology
Undergraduate 2
10/30/2016

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Cards

Term

In figure 6.1 which line best depicts the growth of a facultative anaerobe in the absence of O2?

 

Definition
B
Term
Salts and sugars work to preserve foods by creating a?
Definition
hypertonic environment
Term
The term facultative anaerobe refers to an organism that?
Definition
use oxygen or grows without oxygen
Term
In figure 6.2 which section shows a growth phase where the number of cells dying equals the number of cells dividing?
Definition
C. Stationary Phase
Term
A culture medium on which only Gram-positive organisms grow and a yellow halo surrounds Staphylococcus aureus colonies is called?
Definition
Differential Medium
Term
A culture medium consiting of agar, human blood, and beef heart is a?
Definition
Complex medium
Term
During which growth phase will gram-positive bacteria be most susceptible to penicillin?
Definition
Log phase
Term
In figure 6.4 in which tube are microaerobes growing?
Definition
E.
Term

Psychotrophic organisms are often responsible for food spoilage in refrigerator foods?

True or False

Definition
True
Term
Which of the following does NOT kill Endospores?
Definition

a. autoclaving

b. pasteurization

c. incineration

d. hot-air sterilization

 

Answer is    b

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